Example #1
0
func ParseV23Frame(reader io.Reader) Framer {
	data := make([]byte, FrameHeaderSize)
	if n, err := io.ReadFull(reader, data); n < FrameHeaderSize || err != nil {
		return nil
	}

	id := string(data[:4])
	t, ok := V23FrameTypeMap[id]
	if !ok {
		return nil
	}

	size, err := encodedbytes.NormInt(data[4:8])
	if err != nil {
		return nil
	}

	h := FrameHead{
		FrameType:   t,
		statusFlags: data[8],
		formatFlags: data[9],
		size:        size,
	}

	frameData := make([]byte, size)
	if n, err := io.ReadFull(reader, frameData); n < int(size) || err != nil {
		return nil
	}

	return t.constructor(h, frameData)
}
Example #2
0
func ParseV22Frame(reader io.Reader) Framer {
	data := make([]byte, V22FrameHeaderSize)
	if n, err := io.ReadFull(reader, data); n < V22FrameHeaderSize || err != nil {
		return nil
	}

	id := string(data[:3])
	t, ok := V22FrameTypeMap[id]
	if !ok {
		return nil
	}

	size, err := encodedbytes.NormInt(data[3:6])
	if err != nil {
		return nil
	}

	h := FrameHead{
		FrameType: t,
		size:      size,
	}

	frameData := make([]byte, size)
	if n, err := io.ReadFull(reader, frameData); n < int(size) || err != nil {
		return nil
	}

	return t.constructor(h, frameData)
}